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61 results for “differentiation trajectory”
Database of Rural Technological Trajectories of the Legal Amazon delimited by the Method of Differentiation and Structural Signification of Rural Production
<p>This database contains selected variables associated with the rural economic sector of the Brazilian Legal Amazon distributed at municipal level by technological trajectories (TT) – techno-productive trajectories and their technological variants (TTP) -, as defined and theoretically justified by Costa (2021, p. 217-219).</p> <p>The TTs are designed by a method that combines <em>differentiation and structural signification</em> of rural production in a given territory – hereafter, Method of Differentiation and Structural Signification of Rural Production (M-DESTRU).</p> <p><em>Structural differentiation</em> (Phase 1) is necessary because production systems activities play different roles, depending on the systems production modes and their territorial context: cattle ranching, for example, performs very different economic functions when practiced in family structures (peasants) in the municipalities of the Lower Amazonas, in comparison with wage-based farms in Southeast Pará; the roles played by temporary crops in the peasant systems of the Lower Tocantins are also quite different from those that are observed among employers' establishments in the Lower Amazon; and so on. This phase of the methodology qualifies these differences and has its procedures described on pages 441 and 442 of Costa (2021).</p> <p>In phase 2, M-DESTRU verifies how these structurally dissimilar activities, combine with others linked to the practices of the agents of each production mode, conforming convergences that result in distinct patterns. These <em>patterns</em> are semantically associated with TTs or TTPs<em> structures</em> that are in movement, and these structures all together make up for the region's rural economic system. This Phase's procedures are detailed on pages 441 and 442 of the aforementioned work.</p> <p>The territory of the Brazilian Legal Amazon encompasses 772 municipalities: all from eight states (Acre, Amapá, Amazonas, Mato Grosso, Pará, Rondônia, Roraima and Tocantins) and part of the State of Maranhão (west of the 44ºW meridian).</p> <p>The base data are from the Brazilian Institute of Geography and Statistics (IBGE), from the 1995, 2006 and 2017 Agricultural Censuses. The credit data for 2017 are from the Central Bank of Brazil.</p> <p>The dataset is organized as: Zen1995_LegalAmazon_Inicial.csv; Zen2006_LegalAmazon_Inicial.csv and Zen2017_LegalAmazon_Inicial.csv. In each table the column names are self-explanatory.</p> <p> </p> <p>Reference:</p> <ul> <li>Costa FA. 2021. Structural diversity and change in rural Amazonia: A comparative assessment of the technological trajectories based on agricultural censuses (1995, 2006 and 2017). Nova Economia 31(2). <p> </p> <p> </p> <p> </p> </li> </ul>
Genetic differentiation and demographic trajectory of the insular Formosan and Orii’s flying foxes
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Differentiation trajectories of the Hydra nervous system reveal transcriptional regulators of neuronal fate
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Experimental evolution reveals differential evolutionary trajectories in male and female activity levels in response to sexual selection and metapopulation structure
<p>Behavior is central to interactions with the environment and thus has significant consequences for individual fitness. Sexual selection and demographic processes have been shown to independently shape behavioral evolution. However, while some studies have tested the simultaneous effects of these forces, no studies have investigated their interplay in behavioral evolution. We applied experimental evolution in the seed beetle <i>Callosobruchus maculatus</i> to investigate, for the first time, the interactive effects of sexual selection intensity (high (polygamy) vs. minimal (enforced monogamy)) and metapopulation structure (yes/no) on the evolution of movement activity, a crucial behavior involved in multiples functions (e.g., dispersal, predator avoidance or resource acquisition) and thus, closely related to <a>fitne</a>ss. We found that the interactive effects of the selection regimes did not affect individual activity, which was assayed under two different environments (absence vs. presence of conspecific cues from both sexes). However, contrasting selection regimes led to sex- and context-dependent divergence in activity. The relaxation of sexual selection favored an increase in female, but not male, movement activity that was consistent between environmental contexts. In contrast, selection associated with the presence/absence of metapopulation structure led to context-dependent responses only in male activity. In environments containing cues from conspecifics, males from selection lines under population subdivision showed increased levels of activity compared to those assayed in an environment devoid of conspecifics cues, while the opposite was true for males from panmictic lines. These results underscore that both the effects of sexual selection and population spatial structure may be crucial in shaping sex-specific behavioral evolution.</p>
Fig. 1 in Regional differentiation of felid vertebral column evolution: a study of 3D shape trajectories
Fig. 1 Different vertebral morphologies and their respective threedimensional landmarks: a–c atlas in anterior, posterior and dorsal view; d–f T1 in anterior, posterior and lateral view; g–i L1 in anterior, posterior
Fig. 4 in Regional differentiation of felid vertebral column evolution: a study of 3D shape trajectories
Fig. 4 Phenotypic trajectory analysis (PTA) of post-atlantoaxial presacral vertebrae (i.e. C4–L7) grouped by prey size categories. Larger-sized circles show the average shape location of each individual group per stage. White-filled circles represent the first stage of the trajectory, grey-filled circles represent all intermediate stages and blackfilled circles mark the final stage of each trajectory
Fig. 5 in Regional differentiation of felid vertebral column evolution: a study of 3D shape trajectories
Fig. 5 Phenotypic trajectory analysis (PTA) of vertebrae in the T10–L7 region grouped by prey size (a) and locomotory (b) categories. Largersized circles show the average shape location of each individual group per
Experimental evolution reveals differential evolutionary trajectories in male and female activity levels in response to sexual selection and metapopulation structure
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Data from: Differential aging trajectories in motivation, inhibitory control and cognitive flexibility in Barbary macaques (Macaca sylvanus)
<p>Across the life-span, the performance in problem-solving tasks varies strongly, due to age-related variation in cognitive abilities as well as the motivation to engage in a task. Nonhuman primates provide an evolutionary perspective on human cognitive and motivational aging, as they lack an insight into their own limited lifetime, and aging trajectories are not affected by customs and societal norms. To test age-related variation in inhibitory control, cognitive flexibility, and persistence, we presented Barbary macaques (<i>Macaca sylvanus</i>), living at La Forêt des Singes in Rocamadour (France), with three problem-solving tasks. We conducted 297 trials with 143 subjects aged 2—30 years. We found no effect of age on success and latency to succeed in the inhibitory control task. In the cognitive flexibility task, 21 out of 99 monkeys were able to switch their strategy, but there was no evidence for an effect of age. Yet, the persistence in the motivation task as well as the overall likelihood to participate in any of the tasks declined with increasing age. These results suggest that motivation declines earlier than the cognitive abilities assessed in this study, corroborating the notion that non-human primates and humans show similar changes in motivation in old age.</p>
Data from: Stem cell differentiation trajectories in Hydra resolved at single-cell resolution
The adult Hydra polyp continually renews all of its cells using three separate stem cell populations, but the genetic pathways enabling this homeostatic tissue maintenance are not well understood. We sequenced 24,985 Hydra single-cell transcriptomes and identified the molecular signatures of a broad spectrum of cell states, from stem cells to terminally differentiated cells. We constructed differentiation trajectories for each cell lineage and identified gene modules and putative regulators expressed along these trajectories, thus creating a comprehensive molecular map of all developmental lineages in the adult animal. In addition, we built a gene expression map of the Hydra nervous system. Our work constitutes a resource for addressing questions regarding the evolution of metazoan developmental processes and nervous system function.
Data from: Differential aging trajectories in motivation, inhibitory control and cognitive flexibility in Barbary macaques (Macaca sylvanus)
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Data from: Stem cell differentiation trajectories in Hydra resolved at single-cell resolution
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Single cell transcriptomics resolves basophil differentiation trajectory and identifies pre-basophils
GEO Series GSE206631. Mus musculus. 52 samples. Type: Expression profiling by high throughput sequencing.
Divergent clonal differentiation trajectories of T cell exhaustion (scATAC-seq)
GEO Series GSE188669. Mus musculus. 11 samples. Type: Genome binding/occupancy profiling by high throughput sequencing.
Chromatin-dependent motif syntax defines differentiation trajectories
GEO Series GSE272555. Mus musculus. 295 samples. Type: Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing; Other.
The Epigenetic Regulator UTX Imposes An Effector Differentiation Trajectory in Autoimmune CD8+ T Cell Stem-like Progenitors
GEO Series GSE283268. Mus musculus. 12 samples. Type: Expression profiling by high throughput sequencing.
Single-Cell reconstruction of differentiation trajectory reveals essential dynamics in human cardiac lineage commitment
GEO Series GSE129987. Homo sapiens. 6 samples. Type: Expression profiling by high throughput sequencing.
A cycling, progenitor-like cell population at the root of atypical teratoid rhabdoid tumor subtype differentiation trajectories [Xenium Spatial_Transcriptomics]
GEO Series GSE283832. Homo sapiens. 7 samples. Type: Other.
A cycling, progenitor-like cell population at the root of atypical teratoid rhabdoid tumor subtype differentiation trajectories [snMultiome_data_organoids]
GEO Series GSE283838. Homo sapiens. 6 samples. Type: Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing.
Regulating the Cell Differentiation Trajectory of Progenitor Cells in Adipose Tissue Fibrosis
GEO Series GSE296596. Mus musculus. 3 samples. Type: Expression profiling by high throughput sequencing.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.